检索结果-南通市图书馆

Use of E-co.merce Info rmation

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China's Foreign Trade 2004年第3期 49-50页

作者： Liu Haidong Director of Department of Information, tianjin Shengpumo science & technology co., ltd.

The co.e value of e-co.merce is that the reliable in formation is effectively used through interaction; the advantage of e-co.merce lies in its interaction and the value of information is thus being used.

关键词： Info

Striding Forward Towards International Market

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China's Foreign Trade 2003年第1期 24-25页

作者： tianjin ZHONGXINPHARMACEUTICAL GROUP co.,ltd.

As the first Chinese enterprise published S-stock in abroad, on May 1997,tianjin Zhongxin Pharmaceutical Group co.poration successfully published stocks in Singapore. On June 2001, the co.pany published it’s A-stock in Shanghai Stock Exchange. For any pharmaceutical enterprises in China, Zhongxin co.pany is the first one simultaneously owned S-stock and A-stock.

关键词： GMP in In up as is of have Striding Forward Towards International Market over for

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超声衍射时差检测技术在中国的应用进展

无损检测 2008年第7期30卷 397-402页

作者： tianjin Chengxinda Metal Testing technology co. ltd. ZHANG Ping 天津诚信达金属检测技术有限公司

综述了我国超声衍射时差(TOFD)检测技术的发展历史、检测机构、检测标准、检测研究和应用情况等。目前,有21个锅炉压力容器制造单位及特种设备检验检测机构了开展TOFD检测技术的研究与应用工作。中国特种设备无损检测人员资格鉴定考核... 详细信息

综述了我国超声衍射时差(TOFD)检测技术的发展历史、检测机构、检测标准、检测研究和应用情况等。目前,有21个锅炉压力容器制造单位及特种设备检验检测机构了开展TOFD检测技术的研究与应用工作。中国特种设备无损检测人员资格鉴定考核委员会已经对100多个检测人员进行了专门的TOFD技术培训与资格鉴定。有2个压力容器制造厂和3个检验检测机构已经制定了TOFD检测企业标准。我国的TOFD技术国家标准也在制定过程中。TOFD检测技术在我国已经实现了广泛的研究和应用。

关键词：超声检测 TOFD 压力容器锅炉压力管道

Capacitance performance enhancement of TiO_2 doped with Ni and graphite

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Rare Metals 2009年第3期28卷 231-236页

作者： WANG Hong TANG Zhiyuan SUN Lei HE Yanbing WU Yaxian LI Zhongyan School of Chemical Engineering and technology Tianjin University Tianjin 300072 China McNair technology co. Ltd. Dongguan 523800 China

Nano-amorphous TiO2 was prepared by a sol-gel method. The results of X-ray diffraction （XRD） and scanning electron microsco.y （SEM） show that the co.posite electrode material （TiO2-NiO-C） is made of powder with a grain size of 36.2 nm. Doping of nickel and graphite can increase the electrical co.ductivity and the specific surface area of nano-amorphous TiO2. The electrochemical properties of TiO2-NiO-C, such as self-discharge, leakage current, and cycle life, were studied using cyclic voltammetry （CV）, electrochemical impedance spectrosco.y （EIS）, and charge-discharge test. With a charge-discharge current density of 500 mA/g, the specific capacity of the TiO2-NiO-C co.posite material reaches 12.88 mAh/g. Also, the expense of capacity is only 3.88% after 500 cycles. The electrochemical capacitor with the electrode material of TiO2-NiO-C shows excellent capacity and cycling performance.

关键词： electrochemical capacitor metal oxide sol-gel method TiO2

大型低温液体储罐绝热用膨胀珍珠岩在线补充填系统

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大型低温液体储罐绝热用膨胀珍珠岩在线补充填系统

Decide to increase export price by US＄20-25 per ton

2016全国绝热节能科技创新技术交流会暨全国保温材料科技信息协会年会

作者： tianjin inco. science&technology co.,ltd. 天津英康科技股份有限公司

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关键词：

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China Chemical Reporter 2007年第22期 28-28页

作者： tianjin Soda Plant of tianjin Bohai Chemical Industry (Group)co.,ltd. tianjin Soda Plant of tianjin Bohai Chemical Industry (Group)co. Ltd.

The output of soda ashfrom tianjin Soda Plant oftianjin Bohai Chemical In-dustry(Group) co., *** 900 000 tons in *** co.pany exportedmore than 300 000 tons, ac-co.nting for one fifth ofChina’s total exports ofsoda as... 详细信息

关键词： tianjin neighbor Major Bohai fifth Thailand

Laser glazing study of co.based alloy and Ni-Nb-Cr alloy co.ting

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Chinese Journal of Lasers 1994年第4期B3卷 377-384页

作者： TIAN Nailiang(Department of Applied Physics,tianjin Institute of science and technology, tianjin 300191,China)YANG Yongqiang(Department of Mechanics, tianjin Institute of Textile science and technology,tianjin 300160, China) tianjin Inst of science and Technology Tianjin China

ＬａｓｅｒｇｌａｚｉｎｇｓｔｕｄｙｏｆＣｏ－ｂａｓｅｄａｌｌｏｙａｎｄＮｉ－Ｎｂ－Ｃｒａｌｌｏｙｃｏａｔｉｎｇ￥ＴＩＡＮＮａｉｌｉａｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＡｐｐｌｉｅｄＰｈｙｓｉｃｓ，ＴｉａｎｊｉｎＩｎｓｔｉ... 详细信息

ＬａｓｅｒｇｌａｚｉｎｇｓｔｕｄｙｏｆＣｏ－ｂａｓｅｄａｌｌｏｙａｎｄＮｉ－Ｎｂ－Ｃｒａｌｌｏｙｃｏａｔｉｎｇ￥ＴＩＡＮＮａｉｌｉａｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＡｐｐｌｉｅｄＰｈｙｓｉｃｓ，ＴｉａｎｊｉｎＩｎｓｔｉｔｕｔｅｏｆＳｃｉｅｎｃｅａｎｄＴ...

关键词： Metallic glass cladding layer co.based

Visual Dynamic Simulation and Optimization of Zhangjiuhe Diversion Project

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Transactions of tianjin University 2008年第3期14卷 186-192页

作者：钟登华刘建民熊开智付金强 School of Civil Engineering Tianjin University TEDA Investment Holding co. ltd. Tianjin 300457 China Ertan Hydropower Development co. ltd.

With the aim of visualizing the real-time simulation calculation of water delivery system (WDS), a structural drawing-oriented (SDO) simulation technique was presented, and applied to Zhangjiuhe Diversion Project, which is a long-distance water delivery system co.structed for draw- ing water from the Zhangjiuhe River to Kunming city. Taking SIMULINK software as simulating plat-form, the technique established a visual dynamic simulation model for the system. The simulation procedure of the system was simplified,and the efficiency of modeling was also enhanced acco.ding to the modularization and reutilization of the simulation program. Furthermore, a self-optimization model was presented. Based on the digital simulation models, the on line co.trolled optimization link was added, and the input data can be co.tinually optimized acco.ding to the feedback information of simulating output. The system was thus optimized automatically. Built upon MATLAB software, simulation optimization of the Zhangjiuhe Diversion Project was achieved, which provides a new way for the research of optimal operation of WDS.

关键词： Zhangjiuhe Diversion Project structural drawing-oriented technique digital simulation simulation optimization visualization

Analysis of sea surface temperature fronts in the Taiwan Strait and its adjacent area using an advanced edge detection method

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science China Earth sciences 2010年第7期53卷 1008-1016页

作者： PI QingLing1,2,3 & HU JianYu1,2 1 State Key Laboratory of Marine Environmental science, Xiamen University, Xiamen 361005, China 2 Department of Oceanography, Xiamen University, Xiamen 361005, China 3 China co.munications co.struction co.pany First Harbor co.sultants co., ltd., tianjin 300222, China 1. State Key Laboratory of Marine Environmental science Xiamen University Xiamen 361005 China2. Department of Oceanography Xiamen University Xiamen 361005 China3. China Communications Construction Company First Harbor Consultants CO. LTD. Tianjin 300222 China

A morphology-based edge detection method has been used to study sea surface temperature (SST) fronts in the Taiwan Strait and its adjacent area. The method is based on mathematical morphology with multi-dimensional and multi-structural elements. Using six years’ SST data from September 2002 to August 2008, we distinguished the large SST front like Kuroshio Front as well as the smaller ones: namely Taiwan Bank Front, Zhe-Min co.stal Front and Zhang-Yun Ridge Front. The seasonal and monthly variations of these fronts were also studied. Generally, the SST fronts are stronger in winter but weaker in summer. And the fronts are at their active stage during the period from January to May but at their declining stage during the period from July to October.

关键词： SST front remote sensing edge detection Taiwan Strait Kuroshio